another thing you could try is to introduce a new scent. i usually like to wait till i hunted a couple days out of the stand before doing anything new. most guides dont like you messing with there set ups and although a little risky i tried a couple different times with good sucess on stands that were baited with mostly meat scraps. i used some potent sweet concoction.my favorite recipe is artificial vanilla extract mixed with cheap cooking vegetable oil and dollar store syrup. i put this in a spray bottle and cover ever inch of ground and especially pine needle type tree limbs. my thinking is that if the new scent has a smell that is very inviting a big ole boy mite think he-d better get in there before a rival or smaller bear eats up the new treats. if a bear has been hitting a bait for a while he will know when something new is introduced .vanilla is pretty overwelhming and the oil helps to keep the scent from drying out. i decided on the vanilla because most guides use anise oil so i went with another sickning sweet smell. shake well and call your taxidermist in the morning!